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Test Details are below
Apparatus and reagent
Test device, consisting of a frame of stainless steel into which a weight-piece of mass approximately 5 kg and base of 60 mm × 115 mm is closely fitted, so that a pressure of 12,5 kPa can be applied on test
specimens measuring 40 mm × 100 mm placed between glass or acrylic-resin plates measuring approximately 60 mm × 115 mm × 1,5 mm. The test device shall be constructed so that, if the weight-piece is removed during the test, the pressure of 12,5 kPa remains unchanged.
If the dimensions of the composite specimen differ from the size of
40 mm × 100 mm, the weight-piece used shall be such that a pressure of 12,5 kPa is applied to the specimen.
NOTE: Other devices may be used provided that comparable results are obtained.
Oven, maintained at 37 °C ± 2 °C.
Sodium chloride, 30 g/l aqueous solution, prepared using grade 3 water (see ISO 105-A01:1994, subclause 8.1).
A multifibre adjacent fabric complying with ISO 105-F10.
Test specimen
If the textile to be tested is fabric, either
attach a specimen measuring 40 mm × 100 mm to a piece of the multifibre adjacent fabric (4.4.1), also measuring 40 mm × 100 mm, by sewing along one of the shorter sides, with the multifibre fabric next to the face of the specimen.
Procedure
Thoroughly wet out each composite specimen in a separate container by immersing in sodium chloride solution at room temperature. Lay out the composite specimen smooth between the two glass or acrylic-resin plates under a pressure of 12,5 kPa, and place in the test device which has been preheated to the test temperature.
Note: Up to ten test specimens, each separated from the next by one plate, may be tested in one test device simultaneously.
Place the test device (4.1) containing the composite specimen in the oven (4.2) for 4 h at 37 °C ± 2 °C.
Open out the composite specimen (by breaking the stitching on all sides except one of the shorter sides, if necessary).
NOTE: Specimens that show signs of drying should be discarded.
Dry the specimen by hanging it in air at a temperature not exceeding 60 °C, with the two or three parts in contact only at the line of stitching.
Assess the change in color of the specimen and the staining of the adjacent fabric(s) by comparison with the ISO scales.